HQRP 4-Pack Filters for Neato XV-21 / XV Signature Pro / XV-11 / XV-12 / XV-15 Robotic Vacuums, Neato Pet & Allergy Filter #945-0048 + HQRP Coaster HQRP&reg; Pet & Allergy Filter Kit 4-Pack + HQRP&reg; Coaster; Replacement for Neato Robotic #945-0048 / 9450048; Replace your filter every 1-3 months. 100% Compatible with Original filter; 2 weeks DOA replacement warranty!